Convert every ISO date in a Markdown delivery calendar to dd/mm/yyyy, leaving an order number that looks…

Convert every ISO date in a Markdown delivery calendar to dd/mm/yyyy, leaving an order number that looks…: a task in agent-harbor-tasks (Harbor dataset). calendario.md: tutte le date sono scritte 2026-10-05, mi servono nel formato 05/10/2026. cambiale tutte, il resto uguale